Machine for electrically welding.



UNITED STATES PATENT OFFICE.

Specification 0! Letters Patent. mugs mum c.1060. sum '0. 204.201.

Patented Sept. 11, 1900.

To all whom it may concern:

Be it known that I, Orro GOLDMAN, a citizen of the United States, resid' at San Francisco, in the county of San rancisco and State of California, have invented certain new and useful Improvements in Exhaust-Mufliers, of which the following is a specification.

My invention relates to improvementsin exhaust-mufilers.

The object of my invention is to provide a muflier for explosive-engines which is simgle in construction and reduces the sound of t e discharge so as to be almost inaudible without throttling such discharge.

My invention consists in the novel combination and arrangement of arts shown in the accompanying drawings escribed in the following s ecification, an claimed in the nded c aims.

n my device the deadening of the sound of the exhaust is caused by such an arrangement and combination of parts and apertures as to delay the different parts of the discharge, b makin such parts travel along different iengths 0 free path, thus causing no back ressure.

Re erring to the figures designated on the accompanying drawings, Figure 1 represents a longitudina section of my device. 2 is a plan view of the same, and Fig. 3 1s a transverse section on line X X of Fi 1. Fig. 4 shows a sectional view of a mod' cation of the device wherein the casin 1 is omitted .and Fig. 5 shows a plan view 0 said modified device.

In the said figures, 1 represents a suitable cylindrical casing havingan inlet 2 and an outlet 3 and having an intermediate tapering cylindrical case 8 and an inner tapering tube 4. The tube 4 contains apertures, such as shown at 5. The tube 4 has supports 9, contacting with the interior of the case 8.

The exhaust enters through the inlet 2 into the tapering tube 4 and escap' by means of the holes 5 into the space 6 etween such tube 4 and case 8 partly ascends throu h the opening 7, whereupon it contacts wit the interior of the wall above the casing 1 and is there repelled downward'through the chamber 10, formed b the wall of said casing 1 and case 8, to and through the outlet 3. he arrows in Fig. 1 illustrate the path of the discharge from its entrance through inlet 1 to its escape through inlet 3 and by the breaking up of the full d'scharge as it enters through inlet 2 into diflerent parts, escaping through the respective apertures 5 at ya ing times and from thence as described, t e sound of such discharge is effectually muffled, the discharge partly descending at the base of the ta ring tube, as well as ascendbe somewhat modified without departing from the spirit of my invention.

The discharge escaping gradually by the arran ement of openings, as shown in said mod cation illustrated in Figs. 4 and 5, accomplishes the mufliing of the sound, approximatin the result attained by the use of the device 510% in Fig. 1.

It is understood that while I have illustrated and described the preferred arrangement of m invention I reserve the right to make all changes which properly fall within its s irit and scope.

aving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In an exhaust-mufiier the combination of a casing having at one end thereof a neck constituting an inlet, a tapered tube coincident with said neck having a plurality of apertures, an intermediate tapered case surrounding said tube, out of contact with said tube and casing longitudinally and having end openings, a neck constituting an outlet at the opposite end of said case, substantially as described.

2. In an exhaust-muffler the combination of a casing having an inlet and a discharge opening, a tube in connection with said inlet having an apertured base and side openings and an intermediate case, secured to said base and having a ertures, between said tube and the inner wal of said casing, and permitting passages between them, substantially as descri ed.

3. In an exhaust-muflier the combination of a casing having an inlet and a discharge opening, a tube in connection with said inlet having an a ertured base and side openings, an interme iate case, secured to said base and having apertures, between said tube and PATENTED SEPT. 11, 1906.

L. s. HOLLAND. MACHINE FOR BLEOTRIOALLY WELDING.

APPLIOATION FILED BEPT.28, 1905.

4 SHEETS-SHEET 2.

PATENTED SEPT. 11 1906.

L. S. ROLLAND.

MACHINE FOR ELECTRIGALLY WELDING.

APPLICATION FILED BEPT.28, 1905.

4 SHEETS-SHEET 3.

No. 830,674. PATENTED SEPT. 11, 1906.

' L. S. ROLLAND.

MACHINE FOR ELECTRIGALLY WELDING.

APPLIOATION FILED SEPIHZB, 1905.

4 SHEETS-SHEET 4.

UNITED STATES PATENT oE IoE.

LOUIS STANISLAS ROLLAND, OF BRUSSELS, BELGIUM.-

MACHINE FOR ELECTRICALLY WELDING;

Specification of Letters Patent.

. Patented Sept. 11, 1906.

To all whom it may concern: Be it known that I, LoUIs STANISLAS R'oL- LAND, a citizen of the Re ublic of France, residing at Brussels, Belgium, have invented new and useful Im rovements in Machines for Ele'ctrically'Wel ing, of which the followin is a specification.

his invention relates to a machine for.

electrically welding metal wires, cables, hoopirons, and generally metal bars of all sections.

The machine is also provided with-stamping mechanism for removing the bur or the like which results from the weldin so that when the welded parts are remove from the machine the joint is perfectly invisible.

The machine is represented in the annexed drawings, in whi ch Figure 1 is a plan view thereof; Fig. 2, a front view; Fig. 2, a corresponding perspective view of a fragment; Fig. 3, a cross-section on the line 3 3 of Fig. 2; F' 4, a plan view of part of the machine the table removed; .Fig. 5, a section on the line 5 5 of Fig.- 1; Fig. 6, an elevation of a pair of clip-' pin -pincers,.and Fig. 7 a plan view of Fig. 6.

The machine comprises a table 10, can} ing all the mechanism and adapted to be supported b feet. At the front of this table are mounte two bronze cages 11 and 12, the cage 11 being fixed to the table by bolts and the cage 12 being freely movable in horizonto the terminals of a transformer which supplies current to the machine.

The cage 12 is provided with a brid e 19, engaged by alever 2Q, ivoted to a fixe axle or in 21. On the tab e is fixed a support. or racket 22, through which passes a sore 23, serving as an abutment for the tail of-the cage. On the other sid.ethat is to say, on the left-the movement of the cage is limited by a finger which abuts against the fixed iron 14. f

To the aforesaid lever is attached one, end of a spring the other end of which is attached to a pin 26, fixed to the table 10. Near the free end of this lever is fulcrumed a handle 83, pivoted to a connecting-rod 27,

connected at its other end with a bell-crank lever 28, pivoted to a fixed support 29. At its free end this lever 28 has a regulatingscrew 30, passing therethrough, adapted to abut against the end of a shaft 31, adapted to move longitudinally in bearings 32,- secured to the table 10. Near its right-hand end the shaft 31 is provided with a collar 33. Between this collar and the adjacent bearin 32 is compresse a helical spring 34, coiled around the shaft and tending to move the latter toward the ri ht. Adjacent the lefthand end of the sha t 31 a toothed or worm wheel 35 is fixed thereto, meshing with a worm 36, mounted on the shaft of an electromotor. This wheel 35 is interiorly cut in the form of a hollow cone, with which a cone 37,

rigidly mounted on the shaft 31, is ada ted to enga e by frictions To the shaft 31 t ere is'also ed a gear-wheel 38, meshing with a gear-wheel 39, mounted on the shaft 40, whichis' rotatable below the table 10 in bearings'41, secured to the latter. To the shafts 31 and 40 are fixed cams 42 and 43, respective] Thecam 42 acts on a projection 44 of a ever 45,:the pivot 46 of which rests in or on a support 47, fixed to the table 10. The cam 43 acts on a lever 48, arranged opposite to the lever and below the table 10, the fulcrum 49 of said lever 48 being carried bv a bracket or hanger 50, fixed below the table 10, and said two levers 45'and 48. are connected by a spring 51, tending to pull them toward each other. The lever 45 carries the ,rod 52 of the carrier 53 of an upper matrix 54. The lower matrix 55, having the same vertical axisas the former,is secured in a carrier 56, the lower end of which bears ainst a regulating-screw 80, passing t ough one en of thelever 48, F 3. The carrier 56 has a shoulder on' whic bears a helical spring 57, tending to force saidcarrier downward. This carrier .moves "with slight friction in a guidesocket 58, secured to the under surface of the table 10.

Near the front of the machine in holes formed for that purpose in the workholders 14 and 15 two verticalinsfilated rods 59 and 60 are adapted to slide, said rods being pro- 

